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题名: Quantum Dynamics of Tunneling Between Ferromagnets
作者: Lee, Yu-Li;Lee, Yu-Wen
贡献者: 物理學系
日期: 2003
上传时间: 2012-09-10T06:07:48Z
出版者: The American Physical Society
摘要: We study the Josephson-like spin currents between two ferromagnetic metals by deriving the effective action of the junction. A dc spin Josephson current with the full O(3) symmetry is obtained. We also show that a time-independent uniform magnetic field can serve as the source of the ac spin Josephson effect. That is, the spin current in a uniform magnetic field becomes a periodic function of the time with the period proportional to the inverse of the magnitude of the external magnetic field.
關聯: Phys. Rev. B, 68(18): 184413
显示于类别:[物理學系] 期刊論文


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